background: injuries and deaths from road traffic crashes are one of the main public health problems throughout the world. this study aimed to identify determinants of fatality traffic accident in iran for the twenty-span year from 1991 to 2011. methods: a time series analysis (1991-2011) was used to examine the effects of some of the key explanatory factors (gdp per capita, number of doctors p...

capital structure puzzle is a challenging issue in corporate finance. different researchers attempt to identify ways to determine optimized capital structure which minimizes firm’s cost of capital and maximizes its value, by proposing variety of theories. in line with forming new theories and introducing determinant variables, the absence of comprehensive research which simultaneously tests exi...

this study will provide detailed specification of those variables and determinants of unpredictable health expenditure in iran, and the requirements to reduce extensive effects of the factors affecting households' payments for health and other goods and services inappropriately.this study aims to identify measures of fair financing of health services and determinants of fair financing contribut...

background: improving maternal health is one of the eight millennium development goals (mdgs) aimed at improving maternal healthcare and reducing maternal mortality. the utilization of maternal health services is influenced by several factors that need to be better understood. the objective of this study was to estimate the role of socio-economic position as a determinant of the utilization of ...

in this paper, we give some determinantal and permanental representations of generalized lucas polynomials, which are a general form of generalized bivariate lucas p-polynomials, ordinary lucas and perrin sequences etc., by using various hessenberg matrices. in addition, we show that determinant and permanent of these hessenberg matrices can be obtained by using combinations. then we show, the ...

In this note we show that the determinant identities obtained by Rezaifar and Rezaee (2007)– [1] and Dutta and Pal (2011)–[2] are straightforward consequences of a general result due to Capelli. © 2015 Elsevier Inc. All rights reserved.

the socioeconomic (se) status is considered tobe one of the most important health risk factorsnowadays. a simple search showed that onlyin 2011, more than 1100 articles were cited inpubmed about the relationship of health and sestatus. however, there are many inquiries aboutthis association. the se status is a complex andmultidimensional issue, and there is no goldstandard method to measure it,...

We consider a flagged form of the Cauchy determinant, for which we provide a combinatorial interpretation in terms of nonintersecting lattice paths. In combination with the standard determinant for the enumeration of nonintersecting lattice paths, we are able to give a new proof of the Cauchy identity for Schur functions. Moreover, by choosing different starting and end points for the lattice p...

The aim of this paper is to investigate the Stoneley waves in a non-homogeneous orthotropic granular medium under the influence of a gravity field. The frequency equation obtained, in the form of a sixth-order determinantal expression, is in agreement with the corresponding result when both media are elastic. The frequency equation when the gravity field is neglected has been deduced as a parti...